ignoring keywords on func. call
Fredrik Lundh
fredrik at pythonware.com
Wed Apr 6 07:55:26 EDT 2005
Brano Zarnovican wrote:
> Q: Can you call 'f' with keywords that will be
> ignored, without changing 'f's definition ?
no.
> I would like to avoid code like this:
> k = {}
> k['optional'] = 2
> try:
> f(1, **k)
> except TypeError:
> f(1)
why would you write code like this? what's the use case?
> Also, the problem is that I don't know if the TypeError
> was caused by calling 'f' with keywords or somewhere
> "inside" f.
>
> You can also say that I need to specify optional parameters
> on caller side (not called side).
you can use reflection mechanisms to check the target function
signature, but I won't tell you how to do that until you show me
a reasonable use case ;-)
</F>
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